Since the new wheels/tires and rear suspension I've had a very slight vibration around 70MPH, just had all 4 tires road forced balanced. A couple of the tires had to be rotated on the wheel about 180 degrees, will test drive it later today or in the morning. Hope that does it!

Could it be driveline related? Ever have the driveshaft balenced? Sure you got the angles compatible between the trans and rearend?

Sometimes these are the hardest things to track down. Good luck!

Absolutey! The driveshaft has been in there since the TKO swap and its an aftermarket aluminum piece and is balanced. I didn't have any vibration issues before the new tires and 4 link.

If its not the tires then Steve will double check the driveline angles. I just hope its the tires! Will know later this morning.

Bummer. Hope it's a quick/cheap solution!

still have the vibration :(
Will rotate the driveshaft 180 and see if that helps.

Get it up to 70+ and you really feel it in the butt, put in the clutch and it still vibrates.

Oh Boy. That's no fun. Good luck tracking it down.

What's the next step?

I'll rotate the drive shaft 180 degrees on the rear, I've read that can sometimes fix odd vibration issues. Something quick and simple to try.

If that doesn't then Steve will check the drive line angles, he told me he would go over everything with a fine tooth come to fix it. I know I'm in good hands. :thumbsup:

Vibration gone! Rotating the driveshaft 180 degree's did it. phew!!

Nice! I love it when a plan comes together!

I finally got the new QA1 Stocker Star front shocks and installed them yesterday replacing the 20 or so year old KYBs. No surprise they ride much better even on the lowest setting, they are 12 way adjustable so I will stiffen them up a notch or two and see how that works.
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